Art of making open-work panels for pianos



(NuModeL) 0. A. KIMBALL &TJ GRAMER. ARI-0P MAKING OPEN WORK PANELS FOR PIANOS. No. 533,850.

Patented Feb. 5, 1895.

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WITNESSES. I

UNITED STATES PATENT OFFICE.

ORRIN A. KIMBALL AND JOSEPH GRAMER, OF BOSTON, MASSACHUSETTS.

-ART OF MAKING OPEN-WORK PANELS FOR PIANOS."

SPEGIFIGATION forming part er Letters Patent No. 533,850, dated February 5, 1895.

Application filed June 14, 1894. Serial NO. -1 (N v f To all whom it may concern:

Be it known that we, ORRIN A. KIMBALL and JOSEPH GRAMER, both of Boston, in the county of Sufiolk and State of Massachusetts, have invented a new and useful Improvement in the Art of Making Open-Work Panels for Pianos and the Like, of which the following is a specification, reference being had to the accompanying drawings, in which Figure 1, is a plan view of the upper panel. Fig. 2, is a plan view of theupper panel secured upon the under panel, forming a compound panel. Fig. 3 is a plan view of the compound panel with the open work pattern (shown in black) sawed in. it. Fig. 4: shows a portionof the panel completed by carving. Fig. 5, is a section upon the section line 55 shown in Fig. 3. Our invention consists in combining two or more panels of wood or other suitable mate'- rial in such a manner as to produce a compound panel bearing a pattern partly in relief and partly open work. By our method panels may be produced by a jig saw, having the effect of a carved pattern as well as more open work. 7

Our method of producing such panels is as follows: Several blank panels are secured together by temporary fastenings and a desired pattern is jig sawed in them; either an irregular outline being given to the blanks or an irregular outline with open work or merely open work. The blanks So prepared are then separated and one of them is secured upon the surface of a second blank, forming a compound blank, the pattern of the superimposed blank standing in relief upon the surface of the lower blank. A second open work pat- I blank with a jig'sawed pattern, upon a second blank, thereby producing a compound blank with a portion of the pattern in relief, and jig sawing an open work pattern in the compound blank, thereby completing the pattern of the panel,

all substantially as described.

ORRIN A. KIMBALL. JOSEPH GRAMER.

Witnesses:

O. R. MITCHELL, JOHN R. SNOW. 

